The Air Techniques’ AirStar dental oil-less compressors operate without oil and produce hygienic and dry dental air for compressed air applications. Each AirStar model is equipped with Membrane Dryer Technology – air is quadruple filtered to ensure it is cleaner and drier. Ultra-dry dental air protects valuable handpieces from premature failure due to the effects of moist air and the build-up of oil residue. Single owner ― maintained by Sinclair ― selling to upgrade to a bigger model/moving. Immediate sale.